BOPLA High-Barrier Metallized Film – Keyful PLA-BM
•Derived from renewable corn, certified for industrial composting.
•Excellent barrier properties: resistant to moisture, water, and oxidation, with fold resistance and high gloss.
•Distinct functional features: anti-static properties and resistance to oil and grease.
•Oxygen barrier: 6; water barrier: 4.
BOPLA high-barrier metallized film is derived from renewable corn and certified for industrial composting, offering an eco-friendly alternative to conventional plastic films. It provides reliable moisture, oxygen, oil, and grease resistance, along with anti-static performance, fold durability, and high gloss. These features make it well suited for premium paper-plastic lamination such as gift boxes, handbags, and book covers, as well as barrier layers in tea, coffee, and food packaging.
We focus on the research & development, production, manufacturing, and supply of various flexible, environmentally friendly, and biodegradable packaging films, covering BOPP, BOPET, BOPA, PE, and recyclable single-material films, and are committed to meeting the diverse packaging solution needs of the market.
Keyful BOPLA High-Barrier Metallized Film – PLA-BM is made from renewable corn-based materials and is certified for industrial compostability, combining environmental sustainability with premium performance. It offers excellent barrier properties, strong moisture resistance, and oxidation resistance, along with outstanding fold strength and a high-gloss surface. The metallized layer significantly enhances gas barrier performance, with an oxygen transmission rate of only 6 cc/m²·d and a water vapor transmission rate of 4 g/m²·d, making it ideal for packaging products that require strict freshness protection, such as tea, coffee, and various foods.
The film also features antistatic properties, oil and stain resistance, and a thickness of 15 ± 2 μm. With stable print compatibility, it supports flexographic, gravure, offset, screen, and UV printing, as well as hot-stamping and other premium finishing processes. This enables large-scale customized packaging with a high-end appearance and long-lasting freshness protection.
It is suitable for paper-plastic composite packaging, including gift boxes, color boxes, packaging bags, book covers, and outer cartons used in premium packaging applications.
Applications
Paper-Plastic Lamination: Premium gift boxes, color boxes, handbags, book covers, and outer packaging.
Flexible Packaging Industry: Used as an intermediate barrier layer in tea bags, coffee packaging, and food packaging.
Convenient Tea Bag / Coffee Packaging: Used as an intermediate barrier layer to extend aroma retention and freshness.
Dairy and Prepared Food Packaging: Provides long-term protection in applications requiring high oxygen barrier and low water vapor transmission.
Technical Properties (Typical Values)
| Property | Unit | Result | Test method |
|---|---|---|---|
| Thickness | microns | 15±2 | DIN 53 370 |
| Tensile strength MD/TD | MN/m² | 133 | ASTM D 882 |
| 103 | |||
| Elongation at break MD/TD | % | 123 | ASTM D 882 |
| 135 | |||
| Heat shrinkage MD/TD | % | 3.7 | ASTM D1204 100°C / 10 min |
| 0.8 | |||
| Seal strength | N/15mm | 1.8 | 135kPa / 85°C / 2S |
| Coefficient of friction (film to film) | / | 0.4 | ASTM D 1894 |
| 0.45 | |||
| Oxygen permeability | cc/m²·d | 6 | ASTM D3985 23°C / 0% R.H. |
| Water vapor permeability | g/m²·d | 4 | ASTM F1249 38°C 90% R.H. |
All properties are tested under standard laboratory conditions: 23±2ºC; 50±5% RH, unless otherwise stated. Where relevant, tests are based on international testing standards. Metallising is conducted by a sub-contractor. MD – Machine Direction TD – Transverse Direction.
